Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c8c485dc2568eb5…

MALICIOUS

PDF

361.7 KB Created: 2015-08-22 09:21:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9a035294a0e32c0ea8c32c559c9f4a2b SHA-1: 91c8539af7bfe9fcac0eaadeb62d6a1b477dc649 SHA-256: 5c8c485dc2568eb55942a3bfde0ce1e492f82762f3de5030277ba1d48c0f772e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The ML classifier also strongly flagged the document as malicious. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=%D0%BA%D0%BE%D0%B4+%D0%BA%D1%80%D0%B0%D1%81%D0%BA%D0%B8+%D1%88%D0%B5%D0%B2%D1%80%D0%BE%D0%BB%D0%B5+%D0%BB%D0%B0%D1%87%D0%B5%D1%82%D1%82%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674761_stalker_bolshaya_zona_skachat_torrent_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674526_skachat_patch_dlya_gta_4_eflc_1120_rus.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674522_skachat_gotovuyy_server_dlya_css_v34_cherez_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055b0b.bin
8b7c4986e354a9d454bf45e1f5ca28429bc045cfcc05780356338c76e76f03e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B0B 8588 bytes
font_01_sfnt_off00057408.bin
96ddb3ee77393c5d3b14ead53f1cb0824231b59c8c30fd6f9b9ffe6e65cb39ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57408 16796 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.